You can take it with you. Up-to 8 meters from the base station.
For some that is enough range to take your games outside with a cup of coffee.

No different from any other Wifi-only device being tied to your home internet connection. - Is my Samsung Galaxy Tab suddenly not a mobile device because it's essentially a brick as soon as I exit my wifi range?

Merely pointing out the hypocrisy in your contradicting statements.
But okay, let's move on shall we?

It's a handheld. Whatever generation they are in.

It's a handheld. Whatever generation they are in. It's a current gen handheld.

The concept of generations was introduced because of the "16-bit generation"
It had little to do with the timeframe since the SMD overlapped more with the NES than the SNES; and much more to do with the fact that it was A) the next system after the 8-bit console, and B) a 16-bit console

No one thought of generations prior to the NES until Wikipedia decided two arbitrary groupings of consoles came earlier. The bullshit generations, in other words... That article is dumb, and it's weird that people talking about it like it is the gospel truth - or scientific truth, if we want to be PC here! =D

No one equates Pokemon and Monster Hunter Generations. And there's no reason to say PS4 is Sony's 8th generation console. PS4 is clearly Sony's 4th gen console, it even says on the console itself. Switch is Nintendo's 7th generation home console, but it's useless to say it is the same generation as the PS4, and even more useless to say it is a generation ahead of PS4; Sony and Nintendo really only had one console similar to the other, and that was the PS2 and the Junior (Gamecube), otherwise they've been on two separate tracks.

I guess you don't understand what the concept of a device being a "Hybrid" is. It is something that bridges two different things... In this instance, fixed and portable. - The WiiU is exactly that kind of device where the Gamepad is a portable off-screen gaming device. - With some limitations.

Now the WiiU Gamepad can be tied to ANY WiiU base station. - Just like the Galaxy Tab can be tied to any Wifi base station. - They aren't dissimilar as you might think. - Wifi tends to have similar range limitations as well.

They are completely dissimilar.  A Galaxy Tab will have the same game data and progress with you at all times.  This is what makes it truly portable.  A WiiU Gamepad is a controller with a screen and nothing more.  If I take my gamepad to a friend's house, I am not taking the digital games or save progress with me.  It is no different than taking a dual shock 4 to another PS4.

The WiiU gamepad is not a portable device, it is a controller with the added feature of off screen play.  This does not make the WiiU a portable hybrid device, no matter how much you want to believe it to be so.  It does no processing, stores no data, and is unplayable away from the home console.  It really is not that hard to tell the two apart.

You can transfer data between consoles. Not overtly difficult.

Either way... The WiiU allows for (Albeit limited) portable off-screen gaming independent of the base console. - Meaning it is a hybrid design that deviates from traditional consoles that rely on an external display.

You can pick the WiiU gamepad up and move around with it. Making it portable.

"portable definition: 1. light and small enough to be easily carried or moved: 2. possible to take with you if you move to a different place or job: 3. small and light ..."
https://dictionary.cambridge.org/dictionary/english/portable

False.
The WiiU Gamepad features a small chip which allows for the processing of streams. - h.264 decoding isn't done by magic you know. - Obviously there will also be associated caches for buffering that as well.

Good thing I am not the only one who believes it.
These guys believe the WiiU to be a hybrid: https://digitalbounds.com/2016/10/20/the-nintendo-switch-is-a-better-wii-u-hybrid-everything-we-know/
These guys agree as well: https://techcrunch.com/2017/10/30/nintendo-says-switch-will-beat-wii-u/

The main difference between the Hybrid natures of the Switch and WiiU is actually pretty simple.
The WiiU is a fixed console first, not a portable... Where-as the Switch is a Portable first, not a fixed console.

The WiiU is able to be used like a traditional fixed console Aka. Xbox/Playstation or as a handheld. Like the Switch. - Meaning it is 100% a hybrid device.

Otherwise, you might as well also state that the Switch isn't a Hybrid either... And that just would fly in the face of Nintendo's advertising material now would it?

Well I am done with this.  You are doing nothing but twist words and definitions while ignoring the entire point.  Have a nice day and a Merry Xmas!

Pemalite isn’t twisting words and definitions. He’s actually applying the meaning of said words and definition as they are.

The Wii U is a hybrid console, even if it has limitations that the Switch doesn’t have.

It is portable in a much more limited fashion than the Switch. Requiring the main console to function and serve as its wi-fi hub. But there is no denying it is still portable. 

The way you argue about it, one could do the same with the Switch and say it isn’t a hybrid. It’s a portable, because similar to the Wii U Gamepad’s off TV feature, it requires a dock to function. If the Gamepad doesn’t make the Wii U an hybrid console, then the dock doesn’t make the Switch an hybrid console either. After all, it does no processing, stores no data, and is unplayable away from the portable unit.